Linear oscillator
June 18, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3149255 Reciprocating motor D.C. Electromagnetic actuator Linear motor massage apparatus Non-linear electromagnetic vibration device Linear actuator/motor Electromagnetic reciprocating pump Moving magnet-type actuator Electromagnetic linear drive Vibratory linear actuator and method of driving the same InventorsAssigneeApplicationNo. 09881693 filed on 06/18/2001US Classes:310/15, Reciprocating310/36OscillatingExaminersPrimary: Tamai, KarlAssistant: Scheuermann, David W. Attorney, Agent or FirmForeign Patent References
International ClassH02K033/00AbstractA linear oscillator includes a reciprocating moving part, a case to contain the moving part, and an amplitude control spindle moveably supported in the case. The moving part and the amplitude control spindle reciprocate at a frequency approximately equal to the resonance frequency of the linear oscillator.Field of SearchWith centering or aligning or guiding meansWith plunger rotation preventing means (e.g., means to prevent undesired rotation of the plunger during movement) With relatively movable conductors (e.g., dynamometer) With armature-locking means With vibrating reed or spring bar-type armature With plural armatures selectively retarded With plural armatures Linear Reciprocating With other elements Motion-converting mechanism Solenoid and core type Field or excitation windings or structure Combined permanent and electromagnet | |
